A medical condition caused by outdoor activities in the heat. Occurs when one sweats profusely in the crotchal area, causing the area to become swampy and nasty. Also the name of popular Texas softball team.
by DirtNasty June 26, 2008

what it means to have sac:
JFK himself. When he was in office, he stood before the world and promised everyone a man on the moon within 10 years. Thing is, nobody had started working on a space program at that point. JFK had no data to back up his claims, no insight into the practicality of space travel. But you know what he had?
The man had sac. The man had the sac to stand before the world and say “Yo yo, get this! We’re going to the moon.”
JFK himself. When he was in office, he stood before the world and promised everyone a man on the moon within 10 years. Thing is, nobody had started working on a space program at that point. JFK had no data to back up his claims, no insight into the practicality of space travel. But you know what he had?
The man had sac. The man had the sac to stand before the world and say “Yo yo, get this! We’re going to the moon.”
by Moggraider March 3, 2009

Noun: Special Agent in Charge, an special agent in command of an FBI field office and might lead a team.
Example One:
FBI AGENT 1: "Who's the SAC of the LA field office?"
FBI AGENT 2: "Oh, it's Special Agent Morris."
Example Two:
Girl 1: (seeing an episode of NCIS her friend is watching) "Give me a rundown of who's who on NCIS."
Girl 2: "Well, Mark Harmon is Jethro Gibbs, the Supervisory Special Agent in Charge of the Major Case Response Team, the super hottie Michael Wheatherly is Senior Field Agent Tony DiNozzo, Cote DePablo is Special Agent Ziva David who was a former Mossad liaison, Sean Murray is Special Agent Tim McGee, Pauley Perette is the awesome Goth forensic specialist and David McCallum is Donald "Ducky" Mallard, NCIS's Chief Medical Examiner along with Brian Diezen as Jimmy Palmer, Ducky's assistant. Got that?"
FBI AGENT 1: "Who's the SAC of the LA field office?"
FBI AGENT 2: "Oh, it's Special Agent Morris."
Example Two:
Girl 1: (seeing an episode of NCIS her friend is watching) "Give me a rundown of who's who on NCIS."
Girl 2: "Well, Mark Harmon is Jethro Gibbs, the Supervisory Special Agent in Charge of the Major Case Response Team, the super hottie Michael Wheatherly is Senior Field Agent Tony DiNozzo, Cote DePablo is Special Agent Ziva David who was a former Mossad liaison, Sean Murray is Special Agent Tim McGee, Pauley Perette is the awesome Goth forensic specialist and David McCallum is Donald "Ducky" Mallard, NCIS's Chief Medical Examiner along with Brian Diezen as Jimmy Palmer, Ducky's assistant. Got that?"
by PurpleOrchid85 August 25, 2013

The practice of pulling your testicles between your legs until they become rested on or near the anus. Performed by guys with the name of Chadd.
by Peter Heineken December 1, 2007

When your scrotum stretches out due to summer time weather. A tell tale sign of Summertime Sac is the need for a paint scraper to remove your satchel from your inner thigh.
by John Detlor March 13, 2009

by Noahexists July 9, 2020

by Dipsac June 10, 2014
